# --- T2-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# 
# T2 SDE: package/.../silo/stone_mod_silo.sh
# Copyright (C) 2004 - 2006 The T2 SDE Project
# 
# More information can be found in the files COPYING and README.
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- T2-COPYRIGHT-NOTE-END ---
#
# [MAIN] 70 silo SILO Boot Loader Setup
# [SETUP] 90 silo

create_kernel_list() {
	first=1
	for x in `(cd /boot/ ; ls vmlinux_* ) | sort -r` ; do
		if [ $first = 1 ] ; then
			label=linux ; first=0
		else
			label=linux-${x/vmlinux_/}
		fi
		ver=${x/vmlinux_}
		cat << EOT

image=$bootpath/$x
	label=$label
	root=$rootdev
	initrd=$bootpath/initrd-${ver}.img
	read-only
EOT
	done
}

create_silo_conf() {
	cat << EOT > /etc/silo.conf

# /etc/silo.conf created with the T2 SDE SILO STONE module

root=$bootdev

# Second silo image chooser delay
timeout=80

EOT

	create_kernel_list >> /etc/silo.conf

	gui_message "This is the new /etc/silo.conf file:

$( cat /etc/silo.conf )"
}

silo_install()
{
	gui_cmd 'Installing SILO' "echo 'calling silo' ; silo"
}

device4()
{
	local dev="`sed -n 's,\([^ ]*\) / .*,\1,p' /proc/mounts | tail -n 1`"
	if [ ! "$dev" ] ; then # try the higher dentry
		local try="`dirname $1`"
		dev="`grep \" $try \" /proc/mounts | tail -n 1 | \
		      cut -d ' ' -f 1`"
	fi
	if [ -h "$dev" ] ; then 
	  echo "/dev/`readlink $dev`"
	else
	  echo $dev
	fi
}

realpath() {
	dir="`dirname $1`"
	file="`basename $1`"
	dir="`dirname $dir`/`readlink $dir`"
	dir="`echo $dir | sed 's,[^/]*/\.\./,,g'`"
	echo $dir/$file
}

main() {
	rootdev="`device4 /`"
	bootdev="`device4 /boot`"

	if [ "$rootdev" = "$bootdev" ]
	then bootpath=/boot ; else bootpath="" ; fi

	if [ ! -f /etc/silo.conf ] ; then
	  if gui_yesno "SILO does not appear to be configured.
Automatically install SILO now?"; then
	    create_silo_conf
	    if ! silo_install; then
              gui_message "There was an error while installing SILO."
	    fi
	  fi
	fi

	while

        gui_menu yaboot 'SILO Boot Loader Setup' \
		"Root Device ........... $rootdev" "" \
		"Boot Device ........... $bootdev" "" \
		"Boot Path ............. $bootpath" "" \
		'' '' \
		'(Re-)Create silo.conf with installed kernels' 'create_silo_conf' \
		'(Re-)Install SILO' 'silo_install' \
		'' '' \
		"Edit /etc/silo.conf (Config file)" \
			"gui_edit 'STONE Configuration' /etc/silo.conf"
    do : ; done
}